What It's Good For

If you struggle to do pull ups or you simply just want to do more, this floor exercise will help you start cranking out real pull-ups. This exercise is surprisingly tough. It's great for strengthening your back, arms and glutes. It is also a great exercise if you want to correct your posture.

How It's Done

1. Lie flat on the ground with your belly face down. 2. Lift your legs, arms and chest off the ground. 3. Pull the towel as you extend your arms in front of your head. 4. As you pull the towel in to your chest, squeeze your upper back. You should start to feel the burn after 10 of them.5. Keep going until you hit 30 repetitions. Do this for 5 sets.